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Java: When should a Java developer choose ConcurrentSkipListMap deliberately?

Difficulty:

Medium

Questions:

1

Time Limit:

2 minutes

Passing Score:

100%

Question

When should a Java developer choose ConcurrentSkipListMap deliberately?

  1. Choose ConcurrentSkipListMap mainly when you want to postpone validation and fix problems manually later.
  2. Use ConcurrentSkipListMap when threads need a shared sorted key space with concurrent reads, writes, and range-style operations.
  3. Choose ConcurrentSkipListMap whenever you want the code to look more advanced, even if the design gets less clear.
  4. Choose ConcurrentSkipListMap only to avoid modeling domain rules explicitly in Java code.

Hint

Think about the production scenario where the choice genuinely improves the code.

Answer and rationale

Correct answer: B. Use ConcurrentSkipListMap when threads need a shared sorted key space with concurrent reads, writes, and range-style operations.

Use ConcurrentSkipListMap when threads need a shared sorted key space with concurrent reads, writes, and range-style operations. Interviewers often ask this to see whether you can connect the concept to real design decisions.

Track: Java